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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import, division, print_function
import binascii
import os
import pytest
from cryptography.hazmat.primitives.ciphers import algorithms, modes
from .utils import generate_encrypt_test
from ...utils import load_nist_vectors
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.ECB()
),
skip_message="Does not support SEED ECB",
)
@pytest.mark.cipher
class TestSEEDModeECB(object):
test_ECB = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["rfc-4269.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda **kwargs: modes.ECB(),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.CBC("\x00" * 16)
),
skip_message="Does not support SEED CBC",
)
@pytest.mark.cipher
class TestSEEDModeCBC(object):
test_CBC = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["rfc-4196.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv))
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.OFB("\x00" * 16)
),
skip_message="Does not support SEED OFB",
)
@pytest.mark.cipher
class TestSEEDModeOFB(object):
test_OFB = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["seed-ofb.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv))
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.CFB("\x00" * 16)
),
skip_message="Does not support SEED CFB",
)
@pytest.mark.cipher
class TestSEEDModeCFB(object):
test_CFB = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["seed-cfb.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv))
)
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